ApiPulse

A lightweight Express.js middleware for monitoring API performance and request statistics.

Features

• Track total API requests
• Monitor response times
• Count successful requests (2xx), client errors (4xx), and server errors (5xx)
• View the 20 most recent requests
• Live dashboard with automatic updates
• Lightweight in-memory storage

Installation

npm install apipulse-express

Install Express in your project if you haven't already:

npm install express

Usage

const express = require("express");
const { apiPulse } = require("apipulse-express");

const app = express();

app.use(apiPulse);

app.get("/", (req, res) => {
    res.send("ApiPulse is working!");
});

app.listen(3000, () => {
    console.log("Server running on port 3000");
});

Dashboard

ApiPulse includes a dashboard example that displays request statistics and recent requests.

To try the example from the ApiPulse project directory:

npm install
npm run dev

Open http://localhost:3000/stats in your browser.

Limitations

• Statistics are stored in memory and reset when the server restarts.
• Statistics are maintained separately for each server process.
• The dashboard example is intended for local development. Protect monitoring endpoints before exposing them publicly.